Buffered + batched async event pipeline.

capture/1 sends the event into a buffer backed by a queue. Events are drained from the queue and sent to the PostHog API when either (1) there are more than flush_batch_size events pending, or (2) flush_interval milliseconds have passed since the previous flush, whichever comes first.

Configuration

config :hedgex, :capture,
  max_queue_size: 10000
  # ... etccopy

Options:

• max_queue_size: The size of the queue used to buffer events before sending. If the queue is full, Hedgex.capture/1 will return an error. Defaults to 10000.

• flush_interval: Interval in milliseconds for sending events to the API. Defaults to 500.

• flush_batch_size: Max number of events in the queue before sending events to the API. This is best-effort and not a strict limit. Defaults to 100.